I made the scaled tif back in July after I got back from Taos. I scaled it so it would fit on 7-3/8 x 11 Arches platine, which is the size you get if you quarter an 11 x 15 sheet. I printed a negative with the scaled tif plus the master quad, and I have used that same July negative whenever I print a spyder+master target.
If I open my scaled tif in PS,I get a warning that there is no embedded profile. ExifTool says the ColorSpace is “Uncalibrated.” But you’re right – there’s no way to know it’s Gray Gamma 2.2. Whether or not there is a problem, I’m never going to use that tif again!
I was going to make a new spyder + master negative this evening using the original tif from PiezoDN-Windows. However I needed an ink change, which led to a full printer maintenance after “PK” (which is matte black on my printer) refused to give a good nozzle check, even after multiple head cleaning (all the other channels are fine). I used the dummy cartridge with the syringe twice to inject and withdraw PiezoFlush and did numerous head cleanings. The gaps in “PK” vary from just a few to nearly blank. They don’t progressively get better, as you would expect. For example, I may have a dozen gaps. After a head cleaning, the PK pattern is completely blank! I wonder if there is something stuck INSIDE the cartridge that’s blocking the cartridge outlet. I may have picked up a piece of debris when I filled the PK cart from near the bottom of the matte black bottle.